--- /dev/null
+function Q=percentile(Y,q,DIM)
+% PERCENTILE calculates the percentiles of histograms and sample arrays.
+%
+% Q = percentile(Y,q)
+% Q = percentile(Y,q,DIM)
+% returns the q-th percentile along dimension DIM of sample array Y.
+% size(Q) is equal size(Y) except for dimension DIM which is size(Q,DIM)=length(Q)
+%
+% Q = percentile(HIS,q)
+% returns the q-th percentile from the histogram HIS.
+% HIS must be a HISTOGRAM struct as defined in HISTO2 or HISTO3.
+% If q is a vector, the each row of Q returns the q(i)-th percentile
+%
+% see also: HISTO2, HISTO3, QUANTILE
+
+% $Id: percentile.m 8223 2011-04-20 09:16:06Z schloegl $
+% Copyright (C) 1996-2003,2005,2006,2007 by Alois Schloegl <alois.schloegl@gmail.com>
+% This function is part of the NaN-toolbox
+% http://pub.ist.ac.at/~schloegl/matlab/NaN/
+
+% This program is free software; you can redistribute it and/or modify
+% it under the terms of the GNU General Public License as published by
+% the Free Software Foundation; either version 2 of the License, or
+% (at your option) any later version.
+%
+% This program is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with this program; If not, see <http://www.gnu.org/licenses/>.
+
+
+if nargin==2,
+ Q = quantile(Y,q/100);
+
+elseif nargin==3,
+ Q = quantile(Y,q/100,DIM);
+
+else
+ help percentile
+
+end;
+
+
+